Temporal mangrove dynamics in relation to coastal development in Pacific Panama

Benfield, Sarah L.; Guzmán, Héctor M.; Mair, James McD

doi:10.1016/j.jenvman.2005.02.004

Cited by 69 publications

(58 citation statements)

References 37 publications

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“…In the Urabá Gulf, we recently documented that the IVI of R. mangle and L. racemosa were inversely correlated ( Figure 5), because selective logging upon the first promoted overgrowth of latter (Figure 4(k)), otherwise a secondary species, thus supporting the hypothesis of cryptic degradation. A similar proliferation of L. racemosa was observed in Panamian suburban mangroves as a consequence of reclamation [28]. No correlation was observed between the selective logging of A. germinans and the IVI of L. racemosa in basin mangroves, contrary to the observed in Belizean [64] and Puerto Rican [66] mangroves.…”

Section: Selective Logging As a Driver Of Species Introgressions And supporting

confidence: 47%

“…Most of the reliable current knowledge about mangrove change has been obtained by combining coastal land mapping and field surveys in Indopacific locations (e.g., [25][26][27]). Yet few studies have been able to make historical reconstructions [24,25,28,29]. An ethnoecological approach has also proven to be useful for understanding the drivers of deforestation [6,[29][30][31][32], while ecological economics have helped to account for the costs of mangrove conversion to other uses in a few case studies (e.g., [33]).…”

Section: Isrn Ecologymentioning

confidence: 99%

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Ecosystem-Wide Impacts of Deforestation in Mangroves: The Urabá Gulf (Colombian Caribbean) Case Study

et al. 2012

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Mangroves are ecologically important and extensive in the Neotropics, but they are visibly threatened by selective logging and conversion to pastures in the Southern Caribbean. The objective of this paper was to summarize the impacts of both threats on forest structure, species composition, aboveground biomass and carbon reservoir, species introgressions, and benthic fauna populations by collating past and current data and by using an interdisciplinary approach in the Urabá Gulf (Colombia) as a case study. Mangroves in the Eastern Coast have been decimated and have produced unskewed tree-diameter (DBH) distributions due to the overexploitation of Rhizophora mangle for poles (DBH range: 7-17 cm) and of Avicennia germinans for planks and pilings (DBH > 40 cm). Selective logging increased the importance value of the light-tolerant white mangrove Laguncularia racemosa, also increasing biomass and carbon storage in this species, thus offsetting reductions in other species. Introgressions (cryptic ecological degradation) by L. racemosa and Acrostichum aureum (mangrove fern) and low densities of otherwise dominant detritivore snails (Neritina virginea) were observed in periurban basin mangroves. Finally, basin mangroves were more threatened than fringing mangroves due to their proximity to expanding pastures, villages, and a coastal city.

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Section: Selective Logging As a Driver Of Species Introgressions And supporting

confidence: 47%

Section: Isrn Ecologymentioning

confidence: 99%

Ecosystem-Wide Impacts of Deforestation in Mangroves: The Urabá Gulf (Colombian Caribbean) Case Study

et al. 2012

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“…A number of authors believe that unmanaged logging in mangrove forests may cause considerable alterations to the composition of these ecosystems or even their total elimination from some areas [4]- [7]. In Brazil, the exploitation of these systems has involved even more drastic impacts, such as the installation of shrimp farms at many locations in the northeast of the country [8], deforestation and lumbering in the southeast [9], and the construction of highways in the extreme north [10].…”

Section: Introductionmentioning

confidence: 99%

Survival and Growth of Mangrove Tree Seedlings in Different Types of Substrate on the Ajuruteua Peninsula on the Amazon Coast of Brazil

Costa¹,

Araujo²,

Aguiar³

et al. 2016

OALib

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The present study investigated the growth and survival of seedlings of Rhizophora, Avicennia, and Laguncularia raised in three different substrates: mangrove soil, latosol, and sand. The study was based on an entirely random factorial design (3 × 3) × 3, with three tree species, three substrates, and three replicates. The experiment was conducted in a nursery installed in the municipality of Bragança, in the northern Brazilian state of Pará. The seedlings were grown in 17 cm × 27 cm polyethylene containers. Survival was calculated based on the percentage of germinated propagules surviving after 270 days. Seedling heights were evaluated using an analysis of variance (ANOVA) and morphological parameters were compared using Tukey's test. All three species were ready for replanting after 270 days. The R. mangle and A. germinans seedlings presented better rates of survival and growth on the substrates tested. All three species grew well in the substrates tested, and the production of seedlings in yellow latosol would appear to be the most effective approach.

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“…Where mangroves are close to urban areas, their conversion to a constructed environment (e.g. housing, ports, and industries) is widespread (Benfield et al, 2005). Other areas are transformed into arable and grazing land (Giri et al, 2008).…”

Section: Translation By J Lopez-angaritamentioning

confidence: 99%

Mangroves and people: Lessons from a history of use and abuse in four Latin American countries

López-Angarita

Roberts

Tilley³

et al. 2016

Forest Ecology and Management

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a b s t r a c tFrom native pre-Columbian subsistence economies to the modern global economy, mangroves have played an important role providing goods and services to human societies for millennia. More than 90% of the world's mangroves are located in developing countries, where rates of destruction are increasing rapidly and on large scales. In order to design effective conservation strategies, it is critical to understand the natural dynamics and anthropogenic drivers of these coastal wetland habitats. We use retrospective techniques to reconstruct mangrove forest history in the Eastern Tropical Pacific. We examine available, present day estimates of mangrove area and evaluate the representation of mangroves in the protected area systems of Costa Rica, Panama, Colombia and Ecuador, evaluating existing policies regarding mangroves. Archaeozoological evidence shows that mangroves were exploited for many thousands of years by pre-Columbian societies. Post-conquest deforestation prevailed during the next 400 years. Since 1990, despite increasingly positive attitudes towards mangroves and their inclusion in protected areas and conservation policies, mangrove cover has continued to decline due to expanding human activities (agriculture, aquaculture, coastal development), even in the presence of laws prohibiting their removal. Here we provide an historical ecology baseline of mangroves in the Eastern Tropical Pacific, from which to view current trends and map future trajectories. Given the myriad negative consequences of mangrove loss recorded worldwide, and the strong ecological connectivity of the region, developing effective strategies for mangrove management at an appropriate scale will be paramount to protect coastal livelihoods and biodiversity.

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Temporal mangrove dynamics in relation to coastal development in Pacific Panama

Cited by 69 publications

References 37 publications

Ecosystem-Wide Impacts of Deforestation in Mangroves: The Urabá Gulf (Colombian Caribbean) Case Study

Ecosystem-Wide Impacts of Deforestation in Mangroves: The Urabá Gulf (Colombian Caribbean) Case Study

Survival and Growth of Mangrove Tree Seedlings in Different Types of Substrate on the Ajuruteua Peninsula on the Amazon Coast of Brazil

Mangroves and people: Lessons from a history of use and abuse in four Latin American countries

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